Can guinea pigs eat sweet potato skin?

No they can’t unfortunately. It is worth getting rid of it before serving sweet potato to your piggie.

Can guinea pigs eat cooked sweet potato?

No they can’t. Guinea pigs can only eat raw sweet potato. They can’t eat cooked foods at all.

Verdict

Guinea pigs can eat sweet potato, but only in its raw state and in small amounts on a monthly basis. So they can nibble at it, but don’t make it a regular feature of their diet as it is high in oxelates and starch. However, it is the only potato they can eat.